According to their "Community Guidelines", these are the things that can get you kicked off of YouTube. It says nothing about cursing, aside from the prohibition of slurs.

* YouTube is not for p*rnography or sexually explicit content. If this describes your video, even if it's a video of yourself, don't post it on YouTube. Also, be advised that we work closely with law enforcement and we report child exploitation. Please read our Safety Tips and stay safe on YouTube.

* YouTube is not a shock site. Don't post gross-out videos of accidents, dead bodies and stuff like that. This includes war footage if it's intended to shock or disgust.

* Respect copyright. Only upload videos that you made or that you have obtained the rights to use. This means don't upload videos you didn't make, or use content in your videos that someone else owns the copyright to, such as music tracks, snippets of copyrighted programs, or videos made by other users, without their permission. Read our Copyright Tips for more information.

* We encourage free speech and defend everyone's right to express unpopular points of view. But we don't permit hate speech which contains slurs or the malicious use of stereotypes intended to attack or demean a particular gender, sexual orientation, race, religion, or nationality.

* There is zero tolerance for predatory behavior, stalking, threats, harassment, invading privacy, or the revealing of other members' personal information. Anyone caught doing these things may be permanently banned from YouTube.

* Don't try to cheat the system. No gamed thumbnails, spamming tags, or creating dummy accounts that do things a human wouldn't do.